I just bought a new scroll saw from Delta model SS250. I understand the blade has a front to back movement. But my scroll saw blade has also a right to left movement of about 1/8. This seem to me totally not normal. According to Delta, it is normal. I’ve check with people that has a scroll saw and (delta model 40-640c and a couple of Craftsman) none of them has a movement from right to left. Anybody had the same problem?